Dual-injector fuel injection engine

a fuel injection engine and injector technology, applied in the direction of machines/engines, electric control, combustion air/fuel air treatment, etc., can solve the problems of fuel leakage from the sealed portion, cumbersome assembly, etc., and achieve the effect of high mounting accuracy and easy maintenan
US20060207527A1Active Publication Date: 2006-09-21YAMAHA MOTOR CO LTD +1
41 Cites 25 Cited by

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
YAMAHA MOTOR CO LTD
Publication Date
2006-09-21

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A dual-injector fuel injection engine includes a cylinder block, a cylinder head, an intake port, an intake manifold, a surge tank, an in-cylinder injector, an intake pipe injector, and first and second delivery pipes. The in-cylinder injector is positioned below the intake port, when seen from an axial direction of a crank shaft, and attached to the cylinder head. The intake pipe injector and the second delivery pipe are supported above the intake port, when seen from the axial direction of the crank shaft, by the intake manifold to be close to the intake port.
Need to check novelty before this filing date? Find Prior Art

Description

BACKGROUND OF THE INVENTION

[0001] The present invention relates to a dual-injector fuel injection engine in which fuel is injected into a combustion chamber and intake passage from respective injectors.

[0002] Generally, in a conventional automobile engine, one fuel injector is provided to each cylinder. In an engine of this type, an injector which injects fuel directly into a combustion chamber and an injector which injects fuel into an intake passage may be provided in order to improve the output and fuel cost, as disclosed in, e.g., Japanese Patent Laid-open No. 11-315733 (to be merely referred to as reference 1 hereinafter) or 2002-48035 (to be merely referred to as reference 2 hereinafter).

[0003] In the engine described in reference 1, an in-cylinder injector which injects fuel into the combustion chamber is attached to that lower end of a cylinder head which is close to a cylinder block. An injector which injects fuel (light oil) into an intake passage is attached to that si...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More